Description
RETROTEC 400 Series calibrated fan for air tightness testing of industrial ducts.
The RETROTEC 400 Series doo fan test fan has an adapter that fits on the front of the fan. Using this adapter you can change the direction of the test by connecting the 100 mm hose to either the inlet or outlet of the fan in just a few seconds.
We can use the 400 Series blower door fan for tests at 250, 1000 or even 5000 Pa.
Ref.EU400FAN-E
